/*!	 ducktransform_matrix.h
**	 Template Header
**
**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
**
**	This package is free software; you can redistribute it and/or
**	modify it under the terms of the GNU General Public License as
**	published by the Free Software Foundation; either version 2 of
**	the License, or (at your option) any later version.
**
**	This package is distributed in the hope that it will be useful,
**	but WITHOUT ANY WARRANTY; without even the implied warranty of
**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
**	General Public License for more details.
**
*/

#ifndef __SYNFIG_STUDIO_DUCK_TRANSFORM_MATRIX_H
#define __SYNFIG_STUDIO_DUCK_TRANSFORM_MATRIX_H

#include "duckmatic.h"
#include <synfig/matrix.h>

namespace studio
{

class Transform_Matrix : public synfig::Transform
{
private:
    synfig::Matrix transform;
    synfig::Matrix inverse_transform;

public:
    Transform_Matrix(const synfig::GUID& guid, const synfig::Matrix& matrix):
        Transform(guid),
        transform(matrix)
    {
        if (transform.is_invertible()) {
            (inverse_transform = transform).invert();
        } else {
            synfig::warning("%s:%d passed a non-invertible matrix", __FILE__, __LINE__);
        }
    }

    synfig::Vector perform(const synfig::Vector& x)const
    {
        return transform.get_transformed(x);
    }
    synfig::Vector unperform(const synfig::Vector& x)const
    {
        return inverse_transform.get_transformed(x);
    }

    synfig::String get_string()const
    {
        return "duck matrix";
    }
};

};

#endif